John Gills Exposition of the Bible Commentary - Daniel 6:1
It pleased Darius to set over the kingdom an hundred and twenty princes ,.... This is the same Darius mentioned in the latter part of the preceding chapter; who, as soon as he took the kingdom of Babylon, divided it into a hundred and twenty provinces, as Jacchiades observes; as was the manner of the Medes and Persians. So Darius the son of Hystaspes divided the kingdom of Persia into twenty provinces, and set governors over each, according to Herodotus F18 Thalia, sive l. 3. c. 89. ;... read more
Matthew Henry's Complete Commentary - Daniel 6:1-5
We are told concerning Daniel, I. What a great man he was. When Darius, upon his accession to the crown of Babylon by conquest, new-modelled the government, he made Daniel prime-minister of state, set him at the helm, and made him first commissioner both of the treasury and of the great seal. Darius's dominion was very large; all he got by his conquests and acquests was that he had so many more countries to take care of; no more can be expected from himself than what one man can do, and... read more